Finding the Fourth Proportional to 61,342.31, 91,956.06 and 55,863.88

Step by Step Solution

1. Step 1: Write the proportion equation
   61,342.31 : 91,956.06 = 55,863.88 : x
2. Step 2: Convert to fraction form
   61,342.31/91,956.06 = 55,863.88/x
3. Step 3: Cross multiply
   61,342.31x = 91,956.06 × 55,863.88
4. Step 4: Simplify right side
   61,342.31x = 5,137,022,071.22
5. Step 5: Solve for x
   x = 5,137,022,071.22/61,342.31
6. Step 6: Final answer
   x = 83,743.53