Finding the Fourth Proportional to 52,463.04, 78,748.32 and 40,902.72

Step by Step Solution

1. Step 1: Write the proportion equation
   52,463.04 : 78,748.32 = 40,902.72 : x
2. Step 2: Convert to fraction form
   52,463.04/78,748.32 = 40,902.72/x
3. Step 3: Cross multiply
   52,463.04x = 78,748.32 × 40,902.72
4. Step 4: Simplify right side
   52,463.04x = 3,221,020,483.43
5. Step 5: Solve for x
   x = 3,221,020,483.43/52,463.04
6. Step 6: Final answer
   x = 61,395.99