Finding the Fourth Proportional to 98,663,771.82, 147,994,840.83 and 77,116,485.54

Step by Step Solution

1. Step 1: Write the proportion equation
   98,663,771.82 : 147,994,840.83 = 77,116,485.54 : x
2. Step 2: Convert to fraction form
   98,663,771.82/147,994,840.83 = 77,116,485.54/x
3. Step 3: Cross multiply
   98,663,771.82x = 147,994,840.83 × 77,116,485.54
4. Step 4: Simplify right side
   98,663,771.82x = 11,412,842,002,861,298
5. Step 5: Solve for x
   x = 11,412,842,002,861,298/98,663,771.82
6. Step 6: Final answer
   x = 115,674,089.81