Finding the Fourth Proportional to 111,269,554.35, 153,531,681.76 and 64,209,459.63

Step by Step Solution

1. Step 1: Write the proportion equation
   111,269,554.35 : 153,531,681.76 = 64,209,459.63 : x
2. Step 2: Convert to fraction form
   111,269,554.35/153,531,681.76 = 64,209,459.63/x
3. Step 3: Cross multiply
   111,269,554.35x = 153,531,681.76 × 64,209,459.63
4. Step 4: Simplify right side
   111,269,554.35x = 9,858,186,321,687,116
5. Step 5: Solve for x
   x = 9,858,186,321,687,116/111,269,554.35
6. Step 6: Final answer
   x = 88,597,338.05