Finding the Fourth Proportional to 91,298,860.32, 136,625,016.03 and 56,771,521.27

Step by Step Solution

1. Step 1: Write the proportion equation
   91,298,860.32 : 136,625,016.03 = 56,771,521.27 : x
2. Step 2: Convert to fraction form
   91,298,860.32/136,625,016.03 = 56,771,521.27/x
3. Step 3: Cross multiply
   91,298,860.32x = 136,625,016.03 × 56,771,521.27
4. Step 4: Simplify right side
   91,298,860.32x = 7,756,410,003,561,236
5. Step 5: Solve for x
   x = 7,756,410,003,561,236/91,298,860.32
6. Step 6: Final answer
   x = 84,956,263.16