Finding the Fourth Proportional to 77,921,322.72, 107,484,573.69 and 51,459,919.94

Step by Step Solution

1. Step 1: Write the proportion equation
   77,921,322.72 : 107,484,573.69 = 51,459,919.94 : x
2. Step 2: Convert to fraction form
   77,921,322.72/107,484,573.69 = 51,459,919.94/x
3. Step 3: Cross multiply
   77,921,322.72x = 107,484,573.69 × 51,459,919.94
4. Step 4: Simplify right side
   77,921,322.72x = 5,531,147,556,335,008
5. Step 5: Solve for x
   x = 5,531,147,556,335,008/77,921,322.72
6. Step 6: Final answer
   x = 70,983,748.26