Finding the Fourth Proportional to 42,755,077.26, 64,132,637.76 and 10,406,985.30

Step by Step Solution

1. Step 1: Write the proportion equation
   42,755,077.26 : 64,132,637.76 = 10,406,985.30 : x
2. Step 2: Convert to fraction form
   42,755,077.26/64,132,637.76 = 10,406,985.30/x
3. Step 3: Cross multiply
   42,755,077.26x = 64,132,637.76 × 10,406,985.30
4. Step 4: Simplify right side
   42,755,077.26x = 667,427,418,418,545
5. Step 5: Solve for x
   x = 667,427,418,418,545/42,755,077.26
6. Step 6: Final answer
   x = 15,610,483.27