Finding the Fourth Proportional to 99,371.31, 137,132.30 and 56,930.01

Step by Step Solution

1. Step 1: Write the proportion equation
   99,371.31 : 137,132.30 = 56,930.01 : x
2. Step 2: Convert to fraction form
   99,371.31/137,132.30 = 56,930.01/x
3. Step 3: Cross multiply
   99,371.31x = 137,132.30 × 56,930.01
4. Step 4: Simplify right side
   99,371.31x = 7,806,943,210.32
5. Step 5: Solve for x
   x = 7,806,943,210.32/99,371.31
6. Step 6: Final answer
   x = 78,563.35