Finding the Fourth Proportional to 77,684,199.16, 107,196,562.42 and 42,874,647.62

Step by Step Solution

1. Step 1: Write the proportion equation
   77,684,199.16 : 107,196,562.42 = 42,874,647.62 : x
2. Step 2: Convert to fraction form
   77,684,199.16/107,196,562.42 = 42,874,647.62/x
3. Step 3: Cross multiply
   77,684,199.16x = 107,196,562.42 × 42,874,647.62
4. Step 4: Simplify right side
   77,684,199.16x = 4,596,014,839,832,834
5. Step 5: Solve for x
   x = 4,596,014,839,832,834/77,684,199.16
6. Step 6: Final answer
   x = 59,162,801.31