Finding the Fourth Proportional to 137,898.72, 206,930.70 and 59,013.02

Step by Step Solution

1. Step 1: Write the proportion equation
   137,898.72 : 206,930.70 = 59,013.02 : x
2. Step 2: Convert to fraction form
   137,898.72/206,930.70 = 59,013.02/x
3. Step 3: Cross multiply
   137,898.72x = 206,930.70 × 59,013.02
4. Step 4: Simplify right side
   137,898.72x = 12,211,606,055.04
5. Step 5: Solve for x
   x = 12,211,606,055.04/137,898.72
6. Step 6: Final answer
   x = 88,554.89