Finding the Fourth Proportional to 93,128.94, 139,727.43 and 58,098.06

Step by Step Solution

1. Step 1: Write the proportion equation
   93,128.94 : 139,727.43 = 58,098.06 : x
2. Step 2: Convert to fraction form
   93,128.94/139,727.43 = 58,098.06/x
3. Step 3: Cross multiply
   93,128.94x = 139,727.43 × 58,098.06
4. Step 4: Simplify right side
   93,128.94x = 8,117,892,611.79
5. Step 5: Solve for x
   x = 8,117,892,611.79/93,128.94
6. Step 6: Final answer
   x = 87,168.31