Finding the Fourth Proportional to 103,685.02, 143,085.31 and 58,973.02

Step by Step Solution

1. Step 1: Write the proportion equation
   103,685.02 : 143,085.31 = 58,973.02 : x
2. Step 2: Convert to fraction form
   103,685.02/143,085.31 = 58,973.02/x
3. Step 3: Cross multiply
   103,685.02x = 143,085.31 × 58,973.02
4. Step 4: Simplify right side
   103,685.02x = 8,438,172,848.34
5. Step 5: Solve for x
   x = 8,438,172,848.34/103,685.02
6. Step 6: Final answer
   x = 81,382.76