Finding the Fourth Proportional to 89,295,097.68, 123,196,121.64 and 56,258,298

Step by Step Solution

1. Step 1: Write the proportion equation
   89,295,097.68 : 123,196,121.64 = 56,258,298 : x
2. Step 2: Convert to fraction form
   89,295,097.68/123,196,121.64 = 56,258,298/x
3. Step 3: Cross multiply
   89,295,097.68x = 123,196,121.64 × 56,258,298
4. Step 4: Simplify right side
   89,295,097.68x = 6,930,804,123,667,369
5. Step 5: Solve for x
   x = 6,930,804,123,667,369/89,295,097.68
6. Step 6: Final answer
   x = 77,616,849.12