Finding the Fourth Proportional to 102,030.57, 152,791.31 and 64,477.35

Step by Step Solution

1. Step 1: Write the proportion equation
   102,030.57 : 152,791.31 = 64,477.35 : x
2. Step 2: Convert to fraction form
   102,030.57/152,791.31 = 64,477.35/x
3. Step 3: Cross multiply
   102,030.57x = 152,791.31 × 64,477.35
4. Step 4: Simplify right side
   102,030.57x = 9,851,578,933.02
5. Step 5: Solve for x
   x = 9,851,578,933.02/102,030.57
6. Step 6: Final answer
   x = 96,555.17