Finding the Fourth Proportional to 111,303.72, 153,599.76 and 61,002.72

Step by Step Solution

1. Step 1: Write the proportion equation
   111,303.72 : 153,599.76 = 61,002.72 : x
2. Step 2: Convert to fraction form
   111,303.72/153,599.76 = 61,002.72/x
3. Step 3: Cross multiply
   111,303.72x = 153,599.76 × 61,002.72
4. Step 4: Simplify right side
   111,303.72x = 9,370,003,151.35
5. Step 5: Solve for x
   x = 9,370,003,151.35/111,303.72
6. Step 6: Final answer
   x = 84,184.10