Finding the Fourth Proportional to 748,699,740.56, 1,123,151,810.64 and 311,898,274.72

Step by Step Solution

1. Step 1: Write the proportion equation
   748,699,740.56 : 1,123,151,810.64 = 311,898,274.72 : x
2. Step 2: Convert to fraction form
   748,699,740.56/1,123,151,810.64 = 311,898,274.72/x
3. Step 3: Cross multiply
   748,699,740.56x = 1,123,151,810.64 × 311,898,274.72
4. Step 4: Simplify right side
   748,699,740.56x = 350,309,111,987,260,224
5. Step 5: Solve for x
   x = 350,309,111,987,260,224/748,699,740.56
6. Step 6: Final answer
   x = 467,889,987.15