Finding the Fourth Proportional to 94,592.34, 141,980.85 and 78,120.18

Step by Step Solution

1. Step 1: Write the proportion equation
   94,592.34 : 141,980.85 = 78,120.18 : x
2. Step 2: Convert to fraction form
   94,592.34/141,980.85 = 78,120.18/x
3. Step 3: Cross multiply
   94,592.34x = 141,980.85 × 78,120.18
4. Step 4: Simplify right side
   94,592.34x = 11,091,569,558.55
5. Step 5: Solve for x
   x = 11,091,569,558.55/94,592.34
6. Step 6: Final answer
   x = 117,256.53