Finding the Fourth Proportional to 5,404,402.70, 7,458,020.43 and 2,989,971.98

Step by Step Solution

1. Step 1: Write the proportion equation
   5,404,402.70 : 7,458,020.43 = 2,989,971.98 : x
2. Step 2: Convert to fraction form
   5,404,402.70/7,458,020.43 = 2,989,971.98/x
3. Step 3: Cross multiply
   5,404,402.70x = 7,458,020.43 × 2,989,971.98
4. Step 4: Simplify right side
   5,404,402.70x = 22,299,272,111,967.55
5. Step 5: Solve for x
   x = 22,299,272,111,967.55/5,404,402.70
6. Step 6: Final answer
   x = 4,126,130.74