Finding the Fourth Proportional to 103,488.88, 155,184.18 and 47,312.32

Step by Step Solution

1. Step 1: Write the proportion equation
   103,488.88 : 155,184.18 = 47,312.32 : x
2. Step 2: Convert to fraction form
   103,488.88/155,184.18 = 47,312.32/x
3. Step 3: Cross multiply
   103,488.88x = 155,184.18 × 47,312.32
4. Step 4: Simplify right side
   103,488.88x = 7,342,123,583.10
5. Step 5: Solve for x
   x = 7,342,123,583.10/103,488.88
6. Step 6: Final answer
   x = 70,946.01