Finding the Fourth Proportional to 66,547.34, 91,876.78 and 42,361.95

Step by Step Solution

1. Step 1: Write the proportion equation
   66,547.34 : 91,876.78 = 42,361.95 : x
2. Step 2: Convert to fraction form
   66,547.34/91,876.78 = 42,361.95/x
3. Step 3: Cross multiply
   66,547.34x = 91,876.78 × 42,361.95
4. Step 4: Simplify right side
   66,547.34x = 3,892,079,684.31
5. Step 5: Solve for x
   x = 3,892,079,684.31/66,547.34
6. Step 6: Final answer
   x = 58,485.88