Finding the Fourth Proportional to 52,420.10, 78,476.55 and 46,276.10

Step by Step Solution

1. Step 1: Write the proportion equation
   52,420.10 : 78,476.55 = 46,276.10 : x
2. Step 2: Convert to fraction form
   52,420.10/78,476.55 = 46,276.10/x
3. Step 3: Cross multiply
   52,420.10x = 78,476.55 × 46,276.10
4. Step 4: Simplify right side
   52,420.10x = 3,631,588,675.46
5. Step 5: Solve for x
   x = 3,631,588,675.46/52,420.10
6. Step 6: Final answer
   x = 69,278.55