Finding the Fourth Proportional to 94,931.85, 142,434.53 and 87,181.37

Step by Step Solution

1. Step 1: Write the proportion equation
   94,931.85 : 142,434.53 = 87,181.37 : x
2. Step 2: Convert to fraction form
   94,931.85/142,434.53 = 87,181.37/x
3. Step 3: Cross multiply
   94,931.85x = 142,434.53 × 87,181.37
4. Step 4: Simplify right side
   94,931.85x = 12,417,636,312.63
5. Step 5: Solve for x
   x = 12,417,636,312.63/94,931.85
6. Step 6: Final answer
   x = 130,805.80