Finding the Fourth Proportional to 77,684,209.80, 107,196,577.06 and 42,874,658.25

Step by Step Solution

1. Step 1: Write the proportion equation
   77,684,209.80 : 107,196,577.06 = 42,874,658.25 : x
2. Step 2: Convert to fraction form
   77,684,209.80/107,196,577.06 = 42,874,658.25/x
3. Step 3: Cross multiply
   77,684,209.80x = 107,196,577.06 × 42,874,658.25
4. Step 4: Simplify right side
   77,684,209.80x = 4,596,016,607,017,290
5. Step 5: Solve for x
   x = 4,596,016,607,017,290/77,684,209.80
6. Step 6: Final answer
   x = 59,162,815.96