Finding the Fourth Proportional to 53,281,510.20, 74,669,697 and 53,281,510.20

Step by Step Solution

1. Step 1: Write the proportion equation
   53,281,510.20 : 74,669,697 = 53,281,510.20 : x
2. Step 2: Convert to fraction form
   53,281,510.20/74,669,697 = 53,281,510.20/x
3. Step 3: Cross multiply
   53,281,510.20x = 74,669,697 × 53,281,510.20
4. Step 4: Simplify right side
   53,281,510.20x = 3,978,514,222,336,409.50
5. Step 5: Solve for x
   x = 3,978,514,222,336,409.50/53,281,510.20
6. Step 6: Final answer
   x = 74,669,697