Finding the Fourth Proportional to 111,152.16, 153,368.88 and 65,818.08

Step by Step Solution

1. Step 1: Write the proportion equation
   111,152.16 : 153,368.88 = 65,818.08 : x
2. Step 2: Convert to fraction form
   111,152.16/153,368.88 = 65,818.08/x
3. Step 3: Cross multiply
   111,152.16x = 153,368.88 × 65,818.08
4. Step 4: Simplify right side
   111,152.16x = 10,094,445,213.35
5. Step 5: Solve for x
   x = 10,094,445,213.35/111,152.16
6. Step 6: Final answer
   x = 90,816.46