Finding the Fourth Proportional to 52,613.63, 78,892.78 and 35,978.42

Step by Step Solution

1. Step 1: Write the proportion equation
   52,613.63 : 78,892.78 = 35,978.42 : x
2. Step 2: Convert to fraction form
   52,613.63/78,892.78 = 35,978.42/x
3. Step 3: Cross multiply
   52,613.63x = 78,892.78 × 35,978.42
4. Step 4: Simplify right side
   52,613.63x = 2,838,437,573.81
5. Step 5: Solve for x
   x = 2,838,437,573.81/52,613.63
6. Step 6: Final answer
   x = 53,948.71