Finding the Fourth Proportional to 70,400,300.64, 105,578,839.98 and 48,680,237.40

Step by Step Solution

1. Step 1: Write the proportion equation
   70,400,300.64 : 105,578,839.98 = 48,680,237.40 : x
2. Step 2: Convert to fraction form
   70,400,300.64/105,578,839.98 = 48,680,237.40/x
3. Step 3: Cross multiply
   70,400,300.64x = 105,578,839.98 × 48,680,237.40
4. Step 4: Simplify right side
   70,400,300.64x = 5,139,602,994,643,011
5. Step 5: Solve for x
   x = 5,139,602,994,643,011/70,400,300.64
6. Step 6: Final answer
   x = 73,005,412.59