Finding the Fourth Proportional to 103,141, 142,334.58 and 58,429

Step by Step Solution

1. Step 1: Write the proportion equation
   103,141 : 142,334.58 = 58,429 : x
2. Step 2: Convert to fraction form
   103,141/142,334.58 = 58,429/x
3. Step 3: Cross multiply
   103,141x = 142,334.58 × 58,429
4. Step 4: Simplify right side
   103,141x = 8,316,467,174.82
5. Step 5: Solve for x
   x = 8,316,467,174.82/103,141
6. Step 6: Final answer
   x = 80,632.02